Fan thermostats, often overlooked in the world of HVAC (Heating, Ventilation, and Air Conditioning) systems, play a crucial role in maintaining indoor comfort and energy efficiency. In this article, we’ll delve into the world of fan thermostats, exploring what they are, how they work, and the benefits they bring to your home or workplace.
What is a Fan Thermostat? A fan thermostat, also known as a fan limit switch, is a vital component in forced-air heating and cooling systems. It is responsible for regulating the operation of the blower fan, ensuring that it runs at the right time and speed to maintain a comfortable indoor environment. How Does a Fan Thermostat Work? The operation of a fan thermostat is relatively simple but highly effective. It consists of a bimetallic coil and a set of switches. When the temperature inside your HVAC system’s heat exchanger or furnace reaches a certain level, the bimetallic coil responds by bending, which in turn activates the switches. These switches have two main functions:
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